Valve-gate.



PATEMBD JUNE 2, 1903.

M. LA LONDE.

VALVE GATE.

APPLICATION FILED SEPT. 16. 1902.

naw/144m .i/aaea la, Lozade 7x68 Mama UNHED STATES Patented June 2, 1903.

PATENT QFFIcE.

MOSES LA LONDE, OF I N DIAN ORCHARD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO OCTAVE A. LA RIVIERE, OF INDIAN ORCHARD, MASSA- OI-IUSETTS.

VALVE-GATE,

SPECIFICATION forming part of Letters Patent No. 729,609, dated June 2, 1903.

Application filed September 16, 1902. Serial No. 123,630. (No model.) I

To all whom, it 777/6111] concern:

Be it known that I, MOSES LA LONDE, a subject of the King of Great Britain, residing at Indian Orchard, in the county of I'Iampden and State of Massachusetts, have invented certain new and useful Improvements in Valve-Gates, of which the following is a specification.

This invention relates to valves for controlling water, steam, gas, or other fluid of the type embodying a reciprocating gate or plug, the purpose being to provide a device of this character which will be durable, strong, effective, and capable of being cheaply constructed.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for edecting the result reference is to go be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment 2 5 of the invention is illustrated in the accompanying drawings, in Which- Figure 1 is a perspectiveview of a valve embodying the invention. Fig. 2 is a perspective view of the valve having the neck 0 removed. Fig. 3 is a perspective View of the neck. Fig. 4 is a plan view. Fig. 5 is a central transverse section.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The valve 1 is of wedge form in side elevation, its faces being trued or otherwise constructed so as to make a tight joint with the seats when 40 the valve is forced home in the casing in the usual manner. The valve is an integral structure and is provided at its sides with grooves 2 to receive the ribs of the casing, so as to direct the valve in its reciprocating movements. A bore 3 is formed centrally through the valve to admit of the passage of the operating-stem by means of which the valve is actuated in the accustomed Way. A recess 4E is proirided in the outer end of the valve and is in communication with the bore a The walls of the recess are slightly diverged toward the upper end of the valve, and theangles formed between adjacent walls have filliugs5, made convex in cross-section, so as to brace and stiffen the upper portion of the valve opposite to the recess, thereby preventing the inward pressure upon opposite faces of the valve crushing or bending the same inward.

The neck 6 has its upper portion made circular, as shown at '7, and its lower portion of Wedge form, as indicatedat 8, and adapted to fit the recess 4 in a loose manner, so as to enable the valve to have a limited play, which is essential to allow for slight variations in the assembling of the parts and for wear, to insure a tight joint, and obviate binding of the parts. The neck 6 is centrally bored and internally threaded for cooperation with the usual valve-stem, whereby the valve is actuated when it is required either to open or close the gate. The corners of the wedge portion 8 are cut away, as shown at 9, to conform to the angle-fillings 5, the cut-away portions 9 being concave in transverse section to correspond to the convexity of the fillings 5, whereby an approximately close fit is provided, care being taken to allow sufiicient room for relative play between the valve and neck for the purpose stated. The wedge portion of the neck fits the recess 4 and is held therein by pins or fasteni'ngs 10, passing through transverse openings formed in corresponding parts of the valve and neck in coincident relation, the openings in the neck being sufficiently large to admit of play between the parts 1 and 6.

It will be observed that the device comprises, essentially, two partsthe valve-body and the neck-and each is adapted to be cast from asingle piece, being adapted to be cored, the tapering construction of the walls admitting of the core being drawn from the parts. Inasmuch as the neck is subjected to the greatest strain it may be readily replaced at a nominal cost.

Having thus described the invention, what is claimed as new is- 1. A valve of the character described, comprising a body portion having opposite faces and edge grooves and having a central bore and a recess in its upper end, the walls of the recess being upwardly diverged, and a neck of approximately wedge form to fit loosely within the recess of the valve-body and having a central openinginternally threaded, and pins for securing the neck within the recess of the body, substantially as described.

2. In a valve of the character described, a valve-body havinga recess in its upper end, the Walls of which are upwardly diverged, and fillings in the angles formed between adjacent walls, said fillings being convex in cross-section, and a neck of wedge form to approximate the recess of the valve-body and having a loose fit therein, the corners of the neck being cut away and concave in transverse section, and pins connecting the neck with the valve-body and passing through corresponding openings in the two parts, the openings in the neck being sufficiently large to allow for play thereof, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

MOSES LA LONDE. [L. S.]

Witnesses:

PIERRE N. SYLVESTRE, V. MAIE SYLVESTRE. 

